földelektródák

Földelektródák, also known as earth electrodes or grounding electrodes, are conductive components installed in the ground to establish a low-resistance electrical connection between the earth and an electrical system. Their primary purpose is to provide a safe path for fault currents to dissipate into the ground, thereby protecting people and equipment from electric shock and damage. Földelektródák are essential for the effective operation of lightning protection systems, surge protective devices, and the overall safety of electrical installations.

The effectiveness of a földelektród depends on its resistance to the earth. This resistance is influenced by factors such as the resistivity of the soil, the size and shape of the electrode, the depth of installation, and the moisture content of the soil. Various types of földelektródák exist, including rods, plates, and grids, each chosen based on specific site conditions and electrical safety requirements. For instance, driven rods are common for their ease of installation, while buried grids are often used in areas with high fault currents. Regular testing and maintenance of földelektródák are crucial to ensure their continued integrity and low resistance.